结构工程师2024，Vol.40Issue(2)：148-154,7.
云南泥炭质土层劲性复合桩承载力特性研究
Study on Bearing Capacity of Stiff Composite Pile in Peat Soil in Yunnan Province
摘要
Abstract
Peat soil is a special soft soil foundation in Yunnan,which makes selecting pile foundation of top priority.As a new type of composite pile,rigid composite pile is formed by inserting corresponding core pile into cement soil pile,which greatly improves the overall bearing capacity and has good effect on soft soil foundation treatment.In this paper,through the indoor model test,the load-settlement curve,axial force and side friction of rigid composite pile with different core pile lengths and section sizes are studied,and the bearing characteristics of rigid composite pile are obtained.The test results show that the load settlement curve of the rigid composite pile is'slow drop'type,which shows the bearing characteristics of large diameter piles.The core pile bears the main load,and the axial force and friction force change abruptly at the bottom section of the core pile.关键词
劲性复合桩/泥炭质土/室内模型试验Key words
strength composite pile/peaty soil/indoor model test引用本文复制引用
屈俊童,周春雷,梁伟,张健..云南泥炭质土层劲性复合桩承载力特性研究[J].结构工程师,2024,40(2):148-154,7.基金项目
云南省教育厅科学研究基金项目(2019J0024) （2019J0024）
